In the same meeting with RMF Development as ERBSCAN / ERBSHOW was discussed we talked about Parallel Sysplex instrumentation. (Both XCF and Coupling Facility aspects.) One thing I hadn't noticed is the appearance of Subchannel Busy Percentage as a number in...

It's been almost four years since I wrote DB2 Data Sharing and XCF Job Name .
It mostly stands the test of time but there are a couple of things I want to bring up. I was in the DB2 Development lab a couple of days ago, talking with a couple of developer...

I've just re-read the XCF (74-2) and CF (74-4) sections of the z/OS Release 9 SMF Manual. There are some nice things in there... XCF (74-2) Number of buffer 1KB blocks by path (R742PUSE). This should tell you whether memory waste by over-specifying CLASSLEN is...

Back in z/OS R.9 RMF Parallel Sysplex New Fields (in 2007) I mentioned a new field: R742MJOB (XCF Member Job Name.) At the time I had no real customer data so I could only espouse the HOPE that this field would be useful. (When I asked for it to be added to...